In millions, except per share items | Jun-30-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 |
| 10-Q | 8-K | 10-Q | 10-Q | 10-Q | 10-K/A | 10-Q | 10-Q |
CASH FLOWS FROM OPERATING ACTIVITIES: | | | | | | | | |
Net income (loss) | 0.3 | | | -2.5 | | | | |
Adjustments to reconcile net income (loss) to net cash from (used in) operating activities: | | | | | | | | |
Depreciation and amortization | | | 0.1 | 0.2 | 0.1 | | 0.2 | 0.2 |
Equipment transferred to cost of goods sold | | | 0.1 | 0.1 | 0.1 | | 0.0 | 0.0 |
Share-based compensation | | | 0.3 | 0.4 | 0.3 | | 0.3 | 0.4 |
Net change in: | | | | | | | | |
Trade accounts receivable | | | -0.3 | -1.2 | 0.9 | 1.6 | 0.4 | -1.2 |
Inventories | | | -0.3 | -0.4 | -0.3 | 0.5 | -0.4 | -0.5 |
Other current assets | | | -0.1 | 0.2 | -0.1 | | 0.7 | 0.1 |
Accounts payable and accrued liabilities | | | 0.1 | 0.5 | -0.8 | -0.8 | 0.3 | 0.7 |
Deferred revenue | | | 0.6 | -0.2 | 0.0 | 0.3 | 0.0 | 0.1 |
Other long-term liabilities | | | -0.2 | -0.2 | -0.3 | 0.3 | -0.1 | -0.1 |
Deposits and other long-term assets | | | 0.2 | 0.1 | 0.2 | 0.2 | 0.2 | 0.1 |
Net cash provided by (used in) operating activities | 0.3 | | 1.2 | -1.2 | -1.6 | 0.1 | 1.4 | -0.2 |
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CASH FLOWS FROM INVESTING ACTIVITIES: | | | | | | | | |
Purchases of property, plant and equipment | | | -0.1 | -0.4 | -0.3 | 1.0 | -0.1 | -0.1 |
Cash provided by (used in) investing activities | | | -0.1 | -0.4 | -0.3 | -0.3 | -0.1 | -0.1 |
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CASH FLOWS FROM FINANCING ACTIVITIES: | | | | | | | | |
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax | | | -0.2 | -0.2 | | | -0.4 | |
Cash provided by (used in) financing activities | | | 0.0 | -0.2 | 0.0 | 0.0 | 0.0 | -0.4 |
Increase (decrease) in cash and cash equivalents | | | 1.1 | -1.7 | -1.8 | | 1.3 | -0.8 |
Effects of exchange rate changes on cash | | | -0.3 | -0.3 | 0.0 | | -0.1 | 0.2 |
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Supplemental disclosure of cash flow information: | | | | | | | | |
Cash paid during the period for: | | | | | | | | |
Income taxes | | | 0.1 | 0.0 | 0.4 | 0.5 | -0.5 | 0.0 |